Mr Arjen Vaartjes

Casual Academic

Quantum device design, Quantum Measurements, RF measurements, Quantum Physics, Superconductivity, Quantum Information, Quantum Simulation, Qudits, Data Analysis, Python programming, Data Visualisation

Engineering

Electrical Engineering and Telecommunications

Arjen Vaartjes is a PhD student working on global control and quantum sensing in Antimony qudits in Silicon. Currently he is exploring the creation of non-classical states in a high-dimensional nuclear spin embedded in a silicon nano-electronic device. Additionally, he worked on microwave vacuum squeezing in superconducting amplifiers in collaboration with Dr. Jarryd Pla. Previously, he has completed his master's degree at the Technical University of Delft on Bound states in superconducting devices.

E-mail

a.vaartjes@unsw.edu.au

Journal articles | 2026

Vaartjes A; Su RY; O'Neill LA; Steinacker P; Goenka G; van Blankenstein MR; Yu X; Wilhelm B; Jakob AM; Hudson FE; Itoh KM; Yang CH; Dzurak AS; Jamieson DN; Nurizzo M; Holmes D; Laucht A; Morello A, 2026, 'Maximizing the Nondemolition Nature of a Quantum Measurement Via an Adaptive Readout Protocol', PRX QUANTUM, 7,

Journal articles | 2025

Vaartjes A; Nurizzo M; Zaw LH; Wilhelm B; Yu X; Holmes D; Schwienbacher D; Kringhøj A; van Blankenstein MR; Jakob AM; Hudson FE; Itoh KM; Murray RJ; Blume-Kohout R; Anand N; Dzurak AS; Jamieson DN; Scarani V; Morello A, 2025, 'Certifying the quantumness of a nuclear spin qudit through its uniform precession', Newton, 1,

Journal articles | 2025

Yu X; Wilhelm B; Holmes D; Vaartjes A; Schwienbacher D; Nurizzo M; Kringhøj A; Blankenstein MRV; Jakob AM; Gupta P; Hudson FE; Itoh KM; Murray RJ; Blume-Kohout R; Ladd TD; Anand N; Dzurak AS; Sanders BC; Jamieson DN; Morello A, 2025, 'Schrödinger cat states of a nuclear spin qudit in silicon', Nature Physics, 21, pp. 362 - 367,

Journal articles | 2024

Fernández de Fuentes I; Botzem T; Johnson MAI; Vaartjes A; Asaad S; Mourik V; Hudson FE; Itoh KM; Johnson BC; Jakob AM; McCallum JC; Jamieson DN; Dzurak AS; Morello A, 2024, 'Navigating the 16-dimensional Hilbert space of a high-spin donor qudit with electric and magnetic fields', Nature Communications, 15,

Journal articles | 2024

Gupta P; Vaartjes A; Yu X; Morello A; Sanders BC, 2024, 'Robust macroscopic Schrödinger's cat on a nucleus', Physical Review Research, 6,

Journal articles | 2024

Stemp HG; Asaad S; Blankenstein MRV; Vaartjes A; Johnson MAI; Mądzik MT; Heskes AJA; Firgau HR; Su RY; Yang CH; Laucht A; Ostrove CI; Rudinger KM; Young K; Blume-Kohout R; Hudson FE; Dzurak AS; Itoh KM; Jakob AM; Johnson BC; Jamieson DN; Morello A, 2024, 'Tomography of entangling two-qubit logic operations in exchange-coupled donor electron spin qubits', Nature Communications, 15,

Journal articles | 2024

Vaartjes A; Kringhøj A; Vine W; Day T; Morello A; Pla JJ, 2024, 'Strong microwave squeezing above 1 Tesla and 1 Kelvin', Nature Communications, 15,

Journal articles | 2024

Wesdorp JJ; Matute-Cañadas FJ; Vaartjes A; Grünhaupt L; Laeven T; Roelofs S; Splitthoff LJ; Pita-Vidal M; Bargerbos A; Van Woerkom DJ; Krogstrup P; Kouwenhoven LP; Andersen CK; Yeyati AL; Van Heck B; De Lange G, 2024, 'Microwave spectroscopy of interacting Andreev spins', Physical Review B, 109,

Journal articles | 2023

Vine W; Savytskyi M; Vaartjes A; Kringhøj A; Parker D; Slack-Smith J; Schenkel T; Mølmer K; McCallum JC; Johnson BC; Morello A; Pla JJ, 2023, 'In situ amplification of spin echoes within a kinetic inductance parametric amplifier', Science Advances, 9,

Journal articles | 2023

Wesdorp JJ; Grünhaupt L; Vaartjes A; Pita-Vidal M; Bargerbos A; Splitthoff LJ; Krogstrup P; Van Heck B; De Lange G, 2023, 'Dynamical Polarization of the Fermion Parity in a Nanowire Josephson Junction', Physical Review Letters, 131,
Preprints | 2025

Stemp HG; Asaad S; van Blankenstein MR; Vaartjes A; Johnson MAI; Mądzik MT; Heskes AJA; Firgau HR; Su RY; Yang CH; Laucht A; Ostrove CI; Rudinger KM; Young K; Blume-Kohout R; Hudson FE; Dzurak AS; Itoh KM; Jakob AM; Johnson BC; Jamieson DN; Morello A, 2025, Tomography of entangling two-qubit logic operations in exchange-coupled donor electron spin qubits,

Preprints | 2025

Vaartjes A; Su RY; O'Neill LA; Steinacker P; Goenka G; van Blankenstein MR; Yu X; Wilhelm B; Jakob AM; Hudson FE; Itoh KM; Yang CH; Dzurak AS; Jamieson DN; Nurizzo M; Holmes D; Laucht A; Morello A, 2025, Maximizing the nondemolition nature of a quantum measurement via an adaptive readout protocol,

Preprints | 2024

Vaartjes A; Nurizzo M; Zaw LH; Wilhelm B; Yu X; Holmes D; Schwienbacher D; Kringhøj A; Blankenstein MRV; Jakob AM; Hudson FE; Itoh KM; Murray RJ; Blume-Kohout R; Anand N; Dzurak AS; Jamieson DN; Scarani V; Morello A, 2024, Certifying the quantumness of a nuclear spin qudit through its uniform precession,

Preprints | 2024

Yu X; Wilhelm B; Holmes D; Vaartjes A; Schwienbacher D; Nurizzo M; Kringhøj A; Blankenstein MRV; Jakob AM; Gupta P; Hudson FE; Itoh KM; Murray RJ; Blume-Kohout R; Ladd TD; Anand N; Dzurak AS; Sanders BC; Jamieson DN; Morello A, 2024, Schrödinger cat states of a nuclear spin qudit in silicon,

Preprints | 2023

Fuentes IFD; Botzem T; Johnson MAI; Vaartjes A; Asaad S; Mourik V; Hudson FE; Itoh KM; Johnson BC; Jakob AM; McCallum JC; Jamieson DN; Dzurak AS; Morello A, 2023, Navigating the 16-dimensional Hilbert space of a high-spin donor qudit with electric and magnetic fields,

Preprints | 2023

Gupta P; Vaartjes A; Yu X; Morello A; Sanders BC, 2023, Robust Macroscopic Schrödinger's Cat on a Nucleus,

Preprints | 2023

Vaartjes A; Kringhøj A; Vine W; Day T; Morello A; Pla JJ, 2023, Strong Microwave Squeezing Above 1 Tesla and 1 Kelvin,

Preprints | 2022

Wesdorp JJ; Matute-Caňadas FJ; Vaartjes A; Grünhaupt L; Laeven T; Roelofs S; Splitthoff LJ; Pita-Vidal M; Bargerbos A; van Woerkom DJ; Krogstrup P; Kouwenhoven LP; Andersen CK; Yeyati AL; van Heck B; de Lange G, 2022, Microwave spectroscopy of interacting Andreev spins,

Preprints | 2021

Wesdorp JJ; Grünhaupt L; Vaartjes A; Pita-Vidal M; Bargerbos A; Splitthoff LJ; Krogstrup P; van Heck B; de Lange G, 2021, Dynamical polarization of the fermion parity in a nanowire Josephson junction,

GRS Scholarship

SQA Experience Scholarship

Het Cultuurfonds (Dutch)

Best poster award CQC2T workshop 2023

Runner-up 3 Minute thesis School of Electrical Engineering and Telecommunications

Logic in high-dimensional spins, Microwave squeezing, nonclassical states in high-dimensional spins

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Mr Arjen Vaartjes